Full Stack /Node. JS/ React.js Developer

Job Title : Full Stack Engineer

Location : New Delhi

Job Type : Full-Time

About the Role :

We are seeking a passionate Full Stack Engineer who enjoys building scalable, high-performance applications across web and mobile platforms.

This role is ideal for someone eager to work in a fast-paced startup environment, contributing across the full development lifecycle.

Mandatory Skills :

React.js, Next.js, React Native, Node.js, Express.js, PostgreSQL, AWS (EC2/S3/RDS/IAM), RESTful APIs.

Key Responsibilities :

• Design, build, and maintain scalable applications for web and mobile.
• Translate UI/UX wireframes into efficient, reusable, and maintainable code.
• Optimize applications for maximum performance, scalability, and reliability.
• Work on both front-end and back-end development using modern frameworks.
• Participate in code reviews, debugging, testing, and deployment.
• Collaborate with cross-functional teams to deliver high-quality products.

Requirements :

• Experience : 1+ years of software development (internships + full-time combined acceptable).
• Frontend Skills : React.js, Next.js, React Native.
• Backend Skills : Node.js, Express.js, RESTful APIs.
• Database : Strong knowledge of PostgreSQL.
• Cloud : Exposure to AWS services (EC2, Elastic Beanstalk, RDS, S3, ElasticCache, IAM).
• Additional : Experience with Redis and BullMQ is a strong plus.
• Strong debugging, problem-solving, and analytical skills.
• Enthusiasm for working in a dynamic startup environment.

🚀 We’re Hiring: Senior Full Stack Developer (Python FastAPI & React.js)

📍 Location: Chennai, Tamil Nadu (On-site)

🧠 Experience: 5+ Years

🕒 Employment Type: Full-time

About Lumera Software Solutions

Lumera Software Solutions is a product development–focused organization building technology solutions for world-class supply chain leaders. Our products help global enterprises optimize, automate, and gain real-time visibility across complex supply chain operations.

We design and build scalable, high-performance software used by industry-leading supply chain organizations worldwide, collaborating closely with global stakeholders to solve real, high-impact problems.

Our teams work closely across engineering, design, and product to deliver reliable, well-architected solutions, while collaborating with a globally distributed team across regions and time zones.

🔥 Why This Role Is Different

This role is designed for senior engineers and architect-leaning developers who want to take technical ownership and influence how complex, enterprise-grade systems are built.

You will be building mission-critical product features used by world-class supply chain leaders, working on problems that demand strong system design, scalability, and long-term architectural thinking.

This is a core product development role, not a maintenance or support-driven position.

💼 What You’ll Do

• Act as a senior individual contributor, owning complex, backend-heavy features end-to-end
• Design and develop scalable, production-grade backend services and APIs using Python & FastAPI
• Build and maintain front-end components using React.js, with primary focus on backend-driven functionality
• Participate in system design, architecture reviews, and technical decision-making
• Apply AI-assisted development tools to improve development speed, testing, and code quality
• Collaborate with a globally distributed engineering and product team while working from our Chennai office
• Work closely with databases to design efficient schemas and optimize queries
• Apply strong understanding of DevOps concepts including CI/CD, containerization, deployment, monitoring, and observability
• Mentor engineers through code reviews and design discussions
• Drive improvements in performance, reliability, security, and scalability

🛠️ What We’re Looking For

• 5+ years of hands-on experience in full stack roles with a backend-heavy focus
• Strong proficiency in Python with FastAPI, including API design and performance considerations
• Solid experience building and consuming RESTful APIs at scale
• Good working experience with React.js, JavaScript (ES6+), HTML, and CSS
• Strong understanding of backend architecture, system design, and data modeling
• Good understanding of DevOps concepts such as CI/CD pipelines, Docker, cloud deployments, and monitoring
• Ability to make sound technical trade-offs with long-term maintainability in mind
• Experience mentoring developers or leading by technical example
• Comfortable working in a focused, work-from-office (WFO) product development environment
• Educational Qualification: B.E / B.Tech (Computer Science or related fields)**

➕ Nice to Have (Not Mandatory)

• Experience with cloud platforms (AWS / Azure / GCP)
• Familiarity with Docker and containerization
• Experience setting up or working with CI/CD pipelines
• Exposure to product development teams or building in-house products
• Exposure to AI/ML concepts, data pipelines, or integrating AI services into products
• Experience using AI developer tools to enhance productivity

🎯 What We Offer

• Competitive salary based on skills and impact
• High ownership and visibility of your work
• Fast learning curve with real technical challenges
• A collaborative, no-nonsense engineering culture
• Long-term growth as the company scales

✨ Lumera Software Solutions is an equal opportunity employer. We value talent, ownership, and diversity.

Senior Software Engineer.

• A degree in Data Science, Artificial Intelligence, Computer Science, or a related field
• Strong proficiency in Python, with a solid understanding of object-oriented programming principles.
• Proven experience in developing applications powered by Large Language Models (LLMs).
• Demonstrated experience in building and maintaining robust ETL (Extract, Transform, Load) data pipelines.
• Ability to build full-stack applications using JavaScript; experience with modern frameworks like React and Next.js is highly desirable.
• A pragmatic and self-starting individual, capable of executing tasks effectively with minimal supervision.
• Experience developing modern frontend applications, with specific expertise in using Web Components.
• Knowledge of simulation principles and discrete optimisation techniques.
• Relevant professional certifications in AI, Machine Learning, or cloud platforms are a plus.

Experience

• Proven track record building AI (e.g. LLM-powered solutions, Agent-Based Applications), data science, or numerical computing projects end-to-end—from initial concept through to deployment and maintenance.
• Extensive hands-on experience (4+ years) with core technologies, including:
• Advanced Python, utilising libraries such as NumPy, Pandas, and frameworks for multiprocessing and asynchronous programming.
• Relational database management systems.
• Development and deployment within Linux environments.
• Collaborative development workflows using Git.

MERN Stack Developer

Location: Surat, Gujarat (No WFH )

Job Summary:

We are looking for a Full Stack Developer (MERN) with hands-on experience in building highly scalable, performance-driven applications. The ideal candidate should have a deep understanding of both front-end and back-end development, microservices, and database optimization for large-scale systems. You will be responsible for designing, developing, and maintaining applications that can handle high concurrency (1,000+ active users) while ensuring performance, reliability, and scalability.

This role involves working closely with cross-functional teams — including product managers, designers, and DevOps engineers — to deliver cutting-edge, enterprise-grade solutions.

Roles & Responsibilities:

• Design and develop scalable and distributed web applications using the MERN stack (MongoDB, Express.js, React/Next.js, Node.js).
• Build and optimize RESTful APIs for high-performance, concurrent environments.
• Architect and manage MongoDB databases, ensuring high availability, efficient query performance, and scalability.
• Implement queueing systems (e.g., BullMQ, RabbitMQ, Kafka, or Redis Queues) for background jobs and asynchronous processing.
• Optimize server and client performance to support real-time data updates and high concurrent user loads.
• Collaborate with DevOps to improve deployment pipelines, containerization (Docker), and cloud scalability.
• Conduct thorough testing, profiling, and debugging to identify performance bottlenecks and optimize both code and infrastructure.
• Participate in code reviews, architecture discussions, and sprint planning to ensure technical excellence and scalability across all layers.

Qualification / Requirements:

• Bachelor’s degree in Computer Science, Engineering, or related field (or equivalent experience).
• 1 + years of hands-on experience in full-stack development using the MERN stack.
• Proven experience working on applications supporting 1,000+ concurrent users or large-scale distributed systems.
• Strong expertise in:
• Node.js (asynchronous programming, clustering, performance optimization)
• Next.js & React.js (SSR, CSR, and dynamic rendering)
• MongoDB (aggregation pipelines, indexing, schema design for scalability)
• Practical experience with message queues (BullMQ, RabbitMQ, Kafka, or Redis Streams).
• Familiarity with caching mechanisms (Redis, Memcached) to optimize performance.
• Experience with Docker and microservices-based architectures is a plus.
• Good understanding of API design, authentication mechanisms (JWT, OAuth), and security best practices.
• Experience working in Agile environments and using Git-based version control.

Nice to Have:

• Exposure to serverless computing (AWS Lambda).
• Experience with monitoring tools (New Relic, Datadog, ELK Stack).
• Knowledge of CI/CD pipelines and automated deployment workflows.
• Experience in real-time communication (WebSockets, Socket.io).

Job description:



We are seeking an experienced software engineer to join our small and dynamic startup team. As a software

engineer, you will be responsible for developing and maintaining both the front-end and back-end components of

our web-based applications. This is an excellent opportunity to work in a fast-paced startup environment and have

a direct impact on the growth and success of our company.

Responsibilities:

1. Design, develop, and maintain efficient and scalable web-based applications from inception to

deployment.

2. Collaborate with cross-functional teams, including product managers, designers, and other developers, to

define and implement innovative solutions for our products.

3. Write clean, reusable, and well-documented code using modern programming languages and

frameworks.

4. Build responsive and user-friendly interfaces that deliver an exceptional user experience.

5. Implement and maintain server-side logic and databases for optimum performance and reliability.

6. Conduct thorough testing and debugging to ensure the quality and stability of applications.

7. Stay updated with emerging technologies, industry trends, and best practices in web development.

8. Participate in code reviews and provide constructive feedback to maintain code quality standards.

9. Troubleshoot and resolve issues, bugs, and performance bottlenecks in a timely manner.

10. Collaborate with the team to prioritize and manage multiple projects simultaneously, adhering to project

timelines and deadlines.

Target profile:

1. Bachelor's degree in Computer Science, Engineering, or a related field.

2. Minimum of 2 years of experience as a software engineer.

3. Strong proficiency in front-end development languages such as HTML, CSS, and JavaScript, as well as

modern frameworks such as React, Angular, or Vue.js.

4. Proficiency in server-side languages such as Node.js, Java.

5. Experience working with relational databases such as MySQL, PostgreSQL, or MongoDB.

6. Knowledge of version control systems (e.g., Git) and familiarity with CI/CD processes.

7. Solid understanding of software development principles, design patterns, and best practices.

8. Familiarity with cloud platforms such as AWS, Azure, or GCP is a plus.

9. Excellent problem-solving and analytical skills with a keen attention to detail.

10. Strong communication and collaboration skills to work effectively within a small team.

Our offering:

1. A great work environment with massive ownership and growth opportunities

2. Work closely with the founding and the leadership team on key projects

3. Opportunity to be on top of industry trends and learn from the industry leaders

4. Compensation: Market standards

Responsibilities

• Ability to translate Wireframes and PSD Designs into functional web apps using HTML5, AngularJS, React , Node.js, and Mongo

• Binding of UI elements to JavaScript object models

• Creating RESTful services with Node.js

• Architect scalable web architectures

• Work in a cross-functional team to deliver a complete user experience

• Create Unit and Integration tests to ensure the quality of code

• Be responsive to change requests and feature requests

• Write code that is cross-platform and cross-device compatible

• Ability to wear many hats and learn new technologies quickly

Title: MEAN Stack Developer

B-Arm Medical Technologies, A Well-capitalized start-up is looking for extremely talented MEAN Stack Developers to help pioneer commerce on the Internet with primary focus on Health / MedTech. You must have experience designing and building large and complex (yet maintainable) systems, and you should be able to do so in about one-third the time that most competent people think possible. You should have a BE, ME / MS, or PhD in Computer Science or the equivalent.  Top-notch communication skills with excellent team working capabilities are essential.

You can Expect Flexible Work environment like WFH/ Hybrid environment and a team of talented, motivated, intense, and interesting co-workers.

Your compensation will include best pay in the industry with meaningful equity equivalent ownership like Stock Options.

Technical Requirements: 

• Strong expertise in Node JS, hands-on working skills in MEAN stack and good understanding of closures.
• Strong experience in client-side JavaScript MVC frameworks - Angular JS, Knockout JS.
• Exposure to cloud hosting of backend such as on AWS or Azure
• Hands-on experience of HTML5 and CSS3.
• Expert knowledge of server-side JavaScript (node.js), should be able to handle & deploy code with HTTP servers (Apache or Nginx). Strong experience in writing Object Oriented JavaScript.
• Knowledge in handling SSJSi (server-side JavaScript injection) attack.
• Proficient in data bases (MongoDB/ MySQL/ NoSQL), developing database schemas supporting business processes
• Should be well versed in developing and deploying RESTful APIs, third-party APIs, integrating payment gateways, error handling, and data protection
• Must have at least 2 years of experience in MVC Framework
• Experienced in developing E-Commerce/consumer internet technologies, Content management Systems
• Participate in all stages of development cycle from requirement gathering, analysis, design, test, integration, UI/UX, to post deployment support & enhancements.
• Should have Knowledge to contribute for bug fixing and patches to other node/JavaScript projects.
• Should have worked in an Agile environment.

Key Skills and Competencies:

• Excellent analytical, mathematics & problem-solving skills
• Ability to take initiative, code from scratch and produce desired results.
• Effective verbal and written communication skills.
• Ability to handle multiple tasks with attention to detail and futuristic thinking approach.

Min. Experience: 3-5 years Minimum (or) if you are able to perform tasks that a 3+ years experienced professional would do then you are more than welcome to apply for this position.

No. of Positions: 5

equirements:

• Should have 3.6 - 5 Years work experience.
• Should have experience in Node. JS.
• Should have experience in HTML, CSS.
• Should have experience in JavaScript.